Receiving And Transmitting; D Transmitting Notes - Icom IC-F3400D Operating Manual

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3
BASIC OPERATION

Receiving and transmitting

CAUTION: DO NOT transmit without an antenna. It
may damage the transceiver. See pages 1-3 and 2-6
for accessory attachments.
Receiving:
1. Turn ON the transceiver. (p. 3-2)
2. Select a channel. (p. 3-4)
3. When receiving a call, rotate [VOL] to adjust the
audio output level to a comfortable listening level.
NOTE: Depending on the presetting, the transceiver
may automatically transmit the microphone audio
for the preset time period when a matching signal is
received. (Auto TX function)
Transmitting:
Wait for the channel to become clear to avoid
interference.
1. While holding down [PTT], speak at your normal
voice level.
• When a tone signaling system is used, the call
procedure described on page 3-9 may be necessary.
2. Release [PTT] to return to receive.
IMPORTANT: To maximize the readability of your
signal.
1. Pause briefly after pushing [PTT].
2. Hold the microphone 5 to 10 cm (2 to 4 inches)
from your mouth, then speak at your normal voice
level.

D Transmitting notes

Transmit inhibit function
The transceiver has several inhibit functions which
restrict transmission under the following conditions:
• The channel is in the Inaudible mode (" ": Audible
icon does not appear.)
• The channel is busy. However, depending on the
presetting, you can transmit when a call is received
that includes an non-matching (or matching) CTCSS
(DTCS), RAN (Radio Access Number), Individual ID,
or Group ID.
• The selected channel is a 'receive only' channel.
Time-out timer
If continuous transmission exceeds the preset time-
out timer limit, the transmission is cut off.
Penalty timer
After the transmission is cut off by the Time-Out Timer,
transmission is further inhibited for the preset penalty
timer period.
3-8